NEET UG · Biology · Biotechnology: Principles and Processes
UV Visualization of DNA
NEET asked UV Visualization of DNA 3 times, in 2020, 2021 and 2023: 3 of the 1,875 questions in the 10 papers from 2017–2026. It belongs to Restriction Enzymes, in Biotechnology: Principles and Processes (Biology). The longest wait between two papers asking it was 2 years.
Updated 2026-10-08
- Times asked
- 3
- in 2017–2026
- Papers
- 3
- of 10
- First asked
- 2020
- last in 2023
- Chance next paper
- 6%
- calibrated historical rate
Questions on this idea, by paper
2017–2026. 2020, 2021 and 2023.
How NEET framed it
One-line MCQ is the usual form. Skill tested: recall.
- Reagent identification
- Recall colour or visual result in a technique
Chance asked next paper 6%
Every question
All 3 questions
From the official NEET UG papers, newest first. Open one for the full question, the options and the official answer.
- 2023 Q107Upon exposure to UV radiation, DNA stained with ethidium bromide will showOne-line MCQ · Easy
- 2021 Q123DNA strands on a gel stained with ethidium bromide when viewed under UV radiation, appear as :One-line MCQ · Easy
- 2020 Q18In gel electrophoresis, separated DNA fragments can be visualized with the help of :One-line MCQ · Easy
Same topic
Other ideas in Restriction Enzymes
Restriction Enzymes has 16 ideas NEET has asked; 3 of them came up in more than one question. The 12 most asked are below.
- DNA Precipitation with Chilled Ethanol3× · 2023
- Palindromic Sequences3× · 2022
- Enzymatic Cell Lysis for DNA Isolationonce · 2026
- Anode Migration in Electrophoresisonce · 2025
- Role of DNA Ligaseonce · 2025
- Hind II Cleavage Patternonce · 2024
- Formation of Chimeric DNAonce · 2023
- Agarose Gel Electrophoresisonce · 2022
- EcoRI Recognition Sequenceonce · 2020
- Exo vs Endonucleasesonce · 2020
- Mechanism of DNA Cleavageonce · 2020
- Phosphodiester Bond Cleavageonce · 2019